8640684

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:559

約数の個数: 72

約数和(自身を含む): 24206000

約数和(自身を除く): 15565316

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 37, 39, 52, 74, 78, 111, 117, 148, 156, 222, 234, 333, 444, 468, 481, 499, 666, 962, 998, 1332, 1443, 1497, 1924, 1996, 2886, 2994, 4329, 4491, 5772, 5988, 6487, 8658, 8982, 12974, 17316, 17964, 18463, 19461, 25948, 36926, 38922, 55389, 58383, 73852, 77844, 110778, 116766, 166167, 221556, 233532, 240019, 332334, 480038, 664668, 720057, 960076, 1440114, 2160171, 2880228, 4320342, 8640684]

約数ペア:

[(1, 8640684), (2, 4320342), (3, 2880228), (4, 2160171), (6, 1440114), (9, 960076), (12, 720057), (13, 664668), (18, 480038), (26, 332334), (36, 240019), (37, 233532), (39, 221556), (52, 166167), (74, 116766), (78, 110778), (111, 77844), (117, 73852), (148, 58383), (156, 55389), (222, 38922), (234, 36926), (333, 25948), (444, 19461), (468, 18463), (481, 17964), (499, 17316), (666, 12974), (962, 8982), (998, 8658), (1332, 6487), (1443, 5988), (1497, 5772), (1924, 4491), (1996, 4329), (2886, 2994)]